ELEKTROLISIS & HUKUM FARADAY

ELEKTROLISIS & HUKUM FARADAY

1st Grade

20 Qs

quiz-placeholder

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ELEKTROLISIS & HUKUM FARADAY

ELEKTROLISIS & HUKUM FARADAY

Assessment

Quiz

English

1st Grade

Practice Problem

Medium

CCSS
6.RP.A.3D, RI.4.5, 7.RP.A.3

+4

Standards-aligned

Used 126+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

reaksi yang terjadi di Anoda

C(s) + O2(g) → CO2(g)

K+(aq) + e → K(s)

2Cl-(l) + 2e →Cl2(l)

4OH(aq) → 2H2O(l) + O2(g) + 4e

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Proses elektrolisis lelehan NaCl dengan elektroda karbon digunakan arus sebesar 5 ampere selama 30 menit. Massa logam natrium yang diperoleh adalah .... (Ar Na = 23, Cl = 35,5)

2,14 gram

5,25 gram

3,95 gram

4,52 gram

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Berapakah massa tembaga yang diendapkan di katode pada elektrolisis larutan

CuSO4 dengan menggunakan arus 3 A selama 20 menit. (Ar Cu = 63,5 g/mol)

1,79 gram

0,79 gran

1,18 gram

9,71 gram

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Jika 2 buah sel elektrolisis yang masing-masing mengandung elektrolit AgNO3 dan CuSO4 disusun seri dengan menggunakan arus yang sama, dihasilkan 2,5 g Ag. Berapakah massa Cu yang diperoleh? (Ar Cu= 63,5 g/mol, Ar Ag = 108 g/mol)

7,23 gran

5,45 gram

0,73 gram

1,37 gram

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dari data potensial elektrode standar berikut:

Cu2+ + 2e → Cu E° = 0,3 V

Ag+ + e → Ag E° = 0,80 V


maka reaksi :

Cu2+ + 2Ag+ → Cu2+ + 2Ag


memiliki potensial sel...

+ 0,46 volt

- 0,46 volt

+ 1,46 volt

-1,46 volt

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Mg | Mg2+ || Al | Al3+

Al3+ | Al || Mg2+ | Mg

Al | Al3+ || Mg2+ | Mg

Mg | Mg2+ || Al3+ | Al

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

-0,72 volt

+0,72 volt

-1,72 volt

+1,72 volt

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